50th Anniversary of Hurricane Debbie seeding

Hurricane Debbie’s eye as seen from ESSA DC-6 On August 18th and 20th, 1969, Hurricane Debbie was subjected to a seeding experiment as part of Project STORMFURY.  STORMFURY was a joint Navy and Environmental Science Services Administration (ESSA, the predecessor of NOAA) project to test the hypothesis that seeding hurricanes with silver iodide would disrupt … Continue reading 50th Anniversary of Hurricane Debbie seeding

30th Anniversary of Hurricane Gilbert

On September 16, 1988, Hurricane Gilbert made landfall at the Mexican city of La Pesca,Tamaulipas, with winds of 125 mph (200 km/hr).  It had already brought destruction upon the Yucatan peninsula and the Caribbean islands.  Along the way it set a new low-pressure record that would stand for 17 years. Gilbert was a classic Cape … Continue reading 30th Anniversary of Hurricane Gilbert

35th Anniversary of Hurricane Alicia

In the early morning hours of August 18, 1983, Hurricane Alicia made landfall at San Luis Pass, Texas, just southwest of the Galveston area.  Its 115 mph (185 km/hr) winds slammed the high rises of Houston leaving billions of dollars in damage in its wake. Like many tropical storms that form during low-activity years, Alicia … Continue reading 35th Anniversary of Hurricane Alicia

70th Anniversary of the first hurricane seeding experiment

On the afternoon of October 13, 1947, an Air Force B-17 aircraft penetrated a hurricane 415 miles (667 km) east of Jacksonville and dumped several pounds of crushed dry ice into the storm, just to see what would happen.  This was the first attempt to modify a tropical cyclone by seeding it with freezing nuclei.  … Continue reading 70th Anniversary of the first hurricane seeding experiment

35th Anniversary of first Synoptic Flow mission

On September 14, 1982, NOAA42 flew the first Synoptic Flow Experiment around Hurricane Debby.  The idea behind the experiment was to fly a large-scale pattern around a hurricane while releasing dropwindsondes at regular intervals.  This would create a three-dimensional map of the winds steering the storm.  The data would be entered into hurricane track forecast … Continue reading 35th Anniversary of first Synoptic Flow mission

40th anniversary of Hurricane Anita

On 16 August, 1977, a tropical wave moved off the coast of Africa.  It wasn't until nearly two weeks later that the wave developed enough convection and a surface circulation, and was designated a tropical depression in the middle of the Gulf of Mexico.  The system slowly moved west-southwestward, but rapidly intensifying into a category-5 … Continue reading 40th anniversary of Hurricane Anita

25th Anniversary of Hurricane Andrew striking South Florida

In the early morning hours of August 24, 1992, Category-Five Hurricane Andrew roared across southern Florida leaving behind a trail of devastation that stunned the nation.  Andrew was the first hurricane of this ferocity to hit the continental United States since Hurricane Camille in 1969, and repercussions of its landfall were felt in the world … Continue reading 25th Anniversary of Hurricane Andrew striking South Florida

35th anniversary of the publication first documenting the eyewall cycle in intense tropical cyclones

In February, 1982, The Journal of the Atmospheric Sciences published a ground-breaking study by Hugh Willoughby, Jean Clos, and Mohammed Shoreibah on what became to be known as the eyewall replacement cycle.  Using data obtained from NOAA P3 flights into very intense Hurricanes Anita, David and Allen, they found that a common feature of intense … Continue reading 35th anniversary of the publication first documenting the eyewall cycle in intense tropical cyclones

30th Anniversary of Hurricane Gloria

On September 27, 1985, Hurricane Gloria swept over the Outer Banks then rushed across Long Island, New England, and Canada.  It was the first significant hurricane to hit New England in twenty-five years and brought heavy rains and high winds to the Mid-Atlantic states as well. Gloria began as a tropical depression over the Cape … Continue reading 30th Anniversary of Hurricane Gloria

30th Anniversary of Hurricane Elena

Midday on September 2, 1985, Hurricane Elena came ashore near Biloxi, MS.  But it had been anything of a direct path.  Elena's track had many twists that had vexed forecasters and emergency managers all along the northern Gulf coast. Elena began as a disturbance in the deep tropical Atlantic, but hostile conditions prevented it from … Continue reading 30th Anniversary of Hurricane Elena